package org.jnbt;

/*
 * JNBT License
 * 
 * Copyright (c) 2010 Graham Edgecombe All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * 
 * * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * * Neither the name of the JNBT team nor the names of its contributors may be
 * used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * A class which contains NBT-related utility methods.
 * 
 * @author Graham Edgecombe
 * 
 */
public class NBTUtils {

    /**
     * Gets the type name of a tag.
     * 
     * @param clazz
     *            The tag class.
     * @return The type name.
     */
    public static String getTypeName(Class<? extends Tag> clazz) {
	if (clazz.equals(ByteArrayTag.class)) {
	    return "TAG_Byte_Array";
	} else if (clazz.equals(ByteTag.class)) {
	    return "TAG_Byte";
	} else if (clazz.equals(CompoundTag.class)) {
	    return "TAG_Compound";
	} else if (clazz.equals(DoubleTag.class)) {
	    return "TAG_Double";
	} else if (clazz.equals(EndTag.class)) {
	    return "TAG_End";
	} else if (clazz.equals(FloatTag.class)) {
	    return "TAG_Float";
	} else if (clazz.equals(IntTag.class)) {
	    return "TAG_Int";
	} else if (clazz.equals(ListTag.class)) {
	    return "TAG_List";
	} else if (clazz.equals(LongTag.class)) {
	    return "TAG_Long";
	} else if (clazz.equals(ShortTag.class)) {
	    return "TAG_Short";
	} else if (clazz.equals(StringTag.class)) {
	    return "TAG_String";
	} else {
	    throw new IllegalArgumentException("Invalid tag classs ("
		    + clazz.getName() + ").");
	}
    }

    /**
     * Gets the type code of a tag class.
     * 
     * @param clazz
     *            The tag class.
     * @return The type code.
     * @throws IllegalArgumentException
     *             if the tag class is invalid.
     */
    public static int getTypeCode(Class<? extends Tag> clazz) {
	if (clazz.equals(ByteArrayTag.class)) {
	    return NBTConstants.TYPE_BYTE_ARRAY;
	} else if (clazz.equals(ByteTag.class)) {
	    return NBTConstants.TYPE_BYTE;
	} else if (clazz.equals(CompoundTag.class)) {
	    return NBTConstants.TYPE_COMPOUND;
	} else if (clazz.equals(DoubleTag.class)) {
	    return NBTConstants.TYPE_DOUBLE;
	} else if (clazz.equals(EndTag.class)) {
	    return NBTConstants.TYPE_END;
	} else if (clazz.equals(FloatTag.class)) {
	    return NBTConstants.TYPE_FLOAT;
	} else if (clazz.equals(IntTag.class)) {
	    return NBTConstants.TYPE_INT;
	} else if (clazz.equals(ListTag.class)) {
	    return NBTConstants.TYPE_LIST;
	} else if (clazz.equals(LongTag.class)) {
	    return NBTConstants.TYPE_LONG;
	} else if (clazz.equals(ShortTag.class)) {
	    return NBTConstants.TYPE_SHORT;
	} else if (clazz.equals(StringTag.class)) {
	    return NBTConstants.TYPE_STRING;
	} else {
	    throw new IllegalArgumentException("Invalid tag classs ("
		    + clazz.getName() + ").");
	}
    }

    /**
     * Gets the class of a type of tag.
     * 
     * @param type
     *            The type.
     * @return The class.
     * @throws IllegalArgumentException
     *             if the tag type is invalid.
     */
    public static Class<? extends Tag> getTypeClass(int type) {
	switch (type) {
	case NBTConstants.TYPE_END:
	    return EndTag.class;
	case NBTConstants.TYPE_BYTE:
	    return ByteTag.class;
	case NBTConstants.TYPE_SHORT:
	    return ShortTag.class;
	case NBTConstants.TYPE_INT:
	    return IntTag.class;
	case NBTConstants.TYPE_LONG:
	    return LongTag.class;
	case NBTConstants.TYPE_FLOAT:
	    return FloatTag.class;
	case NBTConstants.TYPE_DOUBLE:
	    return DoubleTag.class;
	case NBTConstants.TYPE_BYTE_ARRAY:
	    return ByteArrayTag.class;
	case NBTConstants.TYPE_STRING:
	    return StringTag.class;
	case NBTConstants.TYPE_LIST:
	    return ListTag.class;
	case NBTConstants.TYPE_COMPOUND:
	    return CompoundTag.class;
	default:
	    throw new IllegalArgumentException("Invalid tag type : " + type
		    + ".");
	}
    }

    /**
     * Default private constructor.
     */
    private NBTUtils() {

    }

}
